The 9660 backflow preventer is a compact safety device designed to protect drinking water systems in accordance with DIN EN 1717 up to fluid category 4.

As a mini backflow preventer in DN10, it is particularly suitable for applications with limited installation space, such as heating system top-ups, dosing systems or commercial dishwashers.

The operating principle is based on a three-zone pressure system with an inlet non-return valve, a drain valve and an outlet non-return valve (p1 > p2 > p3). This ensures reliable separation between drinking water and non-potable water.

Thanks to lead-free materials, low pressure drop and a compact design, the 9660 meets the highest standards of hygiene, efficiency and integration.

connection types

• Male thread

usage

• Water treatment plants
• Dosing systems
• Irrigation technology / Cattle fattening
• Industrial dishwashers
• Car washes

Safety device for protecting drinking water systems against back-pressure, backflow and back-sucking in accordance with DIN EN 1717, up to and including fluid category 4.